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(No Model.)

J. DRONSFIELD & H. GILBODY.

STOP MOTION FOR DOUBLING AND WINDING MACHINES. No. 366,465.

115 M Patented July 12. 1,887.

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, UNITED STATES PATENT OFFicE.

JOSEPH DRONSFIELD AND HENRY GILBODY, OF PROVIDENCE, RI'IODE ISLAND.

STOP-MOTION FOR DOUBLIN G AND WINDING MACHINES.

SPECIFICATION forming part of Letters Patent No. 366,465, dated July 12, 1887.

Application filed December 8, 1856. Serial No. 220,988. (No model.)

To all whom it may concern:

Be it known that we, Josnrn DRONSFIELD and HENRY GILBODY, both of the city and county of Providence, and State of Rhode Island, have invented certain new and useful Improvements in Stop-Motions for Doubling and \Vindin g Machines, of which the following is a full, clear, and exact description, reference being had to theaccompanying drawings, forming part of this specification.

This invention relates to a stop-motion mechanism for doubling and winding machines, or for any analogous cotton machinery.

An object of our invention is to provide a stop-motion which is thrown into operation by an ordinary detector device and a cam and acts with a positive motion and is moved into a secure locked position, whereby the separator-plate forced between the revolving frictiondrum and the spool.

Another object of our invention is to construct a stop-motion that is adapted to operate the separator and to brake the revolving supply bobbins simultaneously, and which is thrown into action by the detector device and the coacting cam.

To the above purposes our invention consists of the certain mechanical apparatus, as set forth in the claims at the end of the specification, and which comprise the following principal parts: the pivoted separator, the endwise-moving slide-bar pivoted to the separator-frame and provided with the ratchettooth and the gravitypawl and the spiral spring, the push-plate, the cam-shaft and cam, the pivoted detector-lever provided with the thread-guide and the swinging drop-wire, and the supply-bobbin brake.

In order that our invention may be fully understood, we will describe the same as illustrated in the: accompanying drawings, which show the best form thereof so far devised by us, and which construction admits of modifications in the details.

In the the accompanying drawings, illustrating our invention, Figure 1 represents a vertical sectional view of an end portion of a doubling and winding machine in which our improved stop-motion is embodied. Fig.2 is a top plan view of Fig. 1.

In the said drawings like numbers of refer ence designate corresponding parts throughout.

Referring to the drawings, number 10 is a portion of the side frame of an ordinary doubling and winding machine; and 13 is a crossbeain upon which is secured the bracket 11, which supports the bolster-rail12, upon. which are mounted the set of dead-spindles 15 for the bobbins 14 to turn on. The standard 34 is so cured upon the machine frame, and is provided with the roller 36, upon which tracks the traverse beam 35, carrying the hanger 37, which is provided with the guide-wire 38. The swinging frame 39 carries the winding-spool 40, which receives rotary motion from the frictiondruin 42, keyed upon the main shaft 41, which may be operated in any well-known manner. The upright 43 supports the rod 45, upon which is fixed the grooved thread-pulley 44.

The detector device consists of the detectorlevers 18, pivoted near their centers on the pivot-bar 4S, which extends through the cars 47, formed on the table 46, which is secured upon the machine. The detector-levers are each provided with a thread-guide, 17 and a swinging depending drop-wire, 19. The thread or yarn 16 passes from each bobbin 14 through separate threadguides 17, thence over a groove in the thread-pulley 44, and are then passed through a single guide-wire, 38, and about the spool 40, which winds the thread upon itself as it is rotated by the friction-drum 42 in the direction of the arrows. Upon the failure of supply of the thread 16 to any one of the threadguides 17 the corresponding detectorlever 18 will swing downwardly and lower the drop-wire 19, which will be engaged by the revolving cam 34.

The foregoing described parts are wellknown features of a doubling'and winding machine in which stop-motions are in ordinary use which employ the separator-plate 7, also the cam shaft 33, having the fixed cam 34, which is arranged in some machines to indirectly force the separator-plate in between the spool and the friction-drum upon the operation of the detector device, in a manner well known. The cam-shaft 33 may receive its motion from the main shaft 41 by a band'connection. (Not shown.)

We will now proceed to describe our 1111 proved stop-motion and its cooperation with the above-described devices.

The separator-plate 7 is hinged upon the separator-frame 6, which is pivoted near the lower end to the rod 8, mounted in lugs 9, se-

cured upon the machine. The slide-bar is mounted in the frame 22, and is adapted to. move endwisein its bearings. The slide-bar is slightly bent at the inner or left-hand end,

- ity-pawl 23 is provided with a handle, 24, and

and the friction-drum.

is pivoted to the projection 25. upon the frame 22, and is de igned to engage the slide-bar and the ratchet-tooth 32 formed on said bar. The push-plate 28 is formed with a perforation in the body thereof, through which the slide-bar is passed, and secured by means of nut 29 on the end of the bar. I

g The bobbin-brake consistsof the brake-rods 30, secured firmly to the push-plate and provided at their outer ends with the brake-shoe 31, which is constructed to bear upon the end flanges of the bobbins 14 at their bases and to stop the-rotation of the bobbins by the frictional resistance.

The drop-wires l9 depend loosely to one side of the push-plate, so that when the wires be engaged by the cam 34, and thereby forced slide-bar lengthwise in its bearings.

From the foregoing description the following operation of the stop-motion will be readily understood. When the thread 16 is supplied to all the thread-guides 17, the detector-levers are maintained about horizontal and hold the drop-wires 19 clear of the cam 34, and the sepa rator is in a vertical position,with the. separator-plate withdrawn from between the spool The spring 27 is unstrained and t-hepawl 23 is out of engagement with the ratchet-tooth 32. Upon the breaking or non-supply of a thread to a thread-guide the connected detector-lever descends and lowers the attached drop-wire, which is struck by the cam and pushed against the push-plate, which moves the slide-bar endwise, whereupon the separator-plate is forced between thespool and friction-drum and the gravity-pawl falls into engagement'with the ratchet-tooth and locks the slide bar into the new position, so as to, hold the separator-plate securely. At the sametime the bobbin-brake is put on the bobbins, and thereby stops them. The various relative abnormal positions of the several parts.

are shown in the broken lines in Fig. 1.

9 office in arresting the motion of all the rotating bobbins the moment the spool ceases to rotate, by virtue of which the threads are not allowed to slacken' and to whip about and become entangled on themselves and with each other.

V s O In order to release the stop-motion from the 7 frame therefor, of an endwise'moving slidebar having a supporting-frame and provided with a "ratchet tooth, a 'pawl engaging said ratchet-tooth, a push-plate secured tothe slidebar, a detector device, substantially as described, provided with a thread-guide and adapted to engage the push-plate, and a cam for engaging the detector device when thelatter assumes an abnormal position, as and for the purpose herein set forth.

2. The combination, with the separator and frame therefor, of an endwise-moving slidebar having a supporting-frame and provided with a ratchet-tooth and apush-plate, a pawl tengaging the ratchet-tooth, a supply-bobbin brake, substantially as described, mounted when the latter is in abnormal position, as and 5 for the purpose herein set forth. against the, pushfplate, which will move the 3. The combination, with the pivoted separator and frame therefor, of an endwise-movj ing slide-bar providedwith a ratchet-tooth and 7 a push-plate, and having a supporting-frame, i a gravity-pawl pivoted to said frame and engaging the ratchet-tooth on the slide-bar, a collar mounted on the slide-bar, and a spiral spring placed about said bar, said spring bear- 3 ing with its respective ends against said collar 1 and said frame, the brake-rods secured to, the

push-plate and provided with the brake-shoe, the detector device, substantially as described,

. provided with a thread-guide and adapted to engage the push-plate, and a cam for engagingthe detector device when the latter is moved out of normal position, as and for the purpose herein set forth.

4. The combination, with the piv ted separator and frame therefor, of the endwise-mov ing slide-bar having a supporting-frame and provided with a ratchet-tooth and a pushplate, a gravity-pawl pivoted to said frame for engaging the ratchet-tooth, a collar fixed to the slide-bar, and a coiled spring placed about f said bar and having its respective ends, bearing against the collar and against said frame,

1 said spring normally unstrained, a pivoted de- Our bobbin-brake performs an important :upon the push-plate, a detector device, subj stantiall y as described, provided with athread guide and adapted to engage the push-plate,

and a cam for engaging the detector device are lowered out of normal position they will tector-lever mounted on the machine-frame and provided with a thread-guide and aswingthe drop-wire when the latter is in lowered position, substantially as and for the purpose set forth.

5. The combination, with the pivoted separator and frame therefor, 'of the end wise-mov ing slide-bar having a supporting'lrame and provided with a ratchet-tooth and apush-plate, a gravity-pawl pivoted on said frame and adapted to engage said ratchet-tooth, a collar fixed on said bar, and a spiral spring placed aboutthe bar and bearing with its respective ends against the collar and said frame, the brake-rods secured to the push-plateand provided with a brake-shoe for the supply-bobbin, a detector-lever pivoted upon the machineframe and provided with a thread-guide and a swinging drop-wire, and aeam for engaging the drop-wire and forcing the d rep-wire against the push-plate when the drop-wire islowered into abnormal position, as and for the purpose herein set forth.

6. The combination, with the endwise-moving slide-bar having a supportingframe and provided with the push-plate, of the brakerods secured to the push-plate and provided with the brake-shoe for braking the supplybobbins, substantially as and for the purpose herein described.

7. The combination, with the pivoted separatorG 7 and the separator-frame, of the slide bar 20, formed with the ratchet-tooth 32, pivoted to the separator-frame, and having the supporting frame 22, the gravity-pawl 23, mounted on said frame, the collar 26, fixed to the slide-bar, and the spring 27, placed around said bar, the push-plate 28, the pivoted detector-lever18, provided with the threadguide 17 and the swinging drop-wire 19, and the rotary cam shaft 33, provided with cam 34., adapted to engage the drop-wire when the latter is in lowered position, substantially as and for the purpose herein described.

8. The combination,,with the pivoted separator 6 7 and the separator-frame, of the slide-bar 20, formed with the ratchet-tooth 32 and pivoted to the separator-frame, and having the supporting-frame 22, the pawl 23, pivoted 011 said frame, the collar 26, fixed to the slidebar, and the spring 27 on said bar, the pushplate 28, the brake-rod 30, secured to the push- &

plate and provided with the brake-shoes 31, the pivoted detector-lever 18, provided with the'threadguide 17 and the drop-wire 19, and the cam-shaft 33, provided with cam 34 for engaging the drop-wire when the latter is in abnormal position, substantially as and for the purpose herein set forth.

9.. The combination, with the slide-bar 20, having the su pporting-fra1ne 22 and provided with the plate 28, of the brake-rods 30, secured to said plate and having the brake-shoe 31. for braking the bobbins, substantially as and for the purpose herein set forth.

10. In a stop-motion for spooling and winding machines, the combination, as hereinbefore set forth, with a spool-support and a frictiondrum for driving the spool, of separating means, substantially as described, for separating the spool and friction-drum, a bobbin brake for braking the bobbins, a detector device and actuating-cam, and means intermediate the said detector device and cam and the separating means and brake whereby the separating means and the bobbin-brake may be simultaneously operated, substantially as and for the purpose herein described.

In witness whereof we have hereunto set our hands.

JOSEPH DRONSFIELD. HENRY GILBODY.

Witnesses:

J. A. MILLER, Jr. M. F. Baron. 

